Multaq is a brand name for Dronedarone. The medicine, its uses, side effects and dosage are the same regardless of brand.
Used for: MULTAQ is indicated for the maintenance of sinus rhythm after successful cardioversion in adult clinically stable patients with paroxysmal or persistent atrial fibrillation (AF). Due to its safety profile (see sections 4.3 and 4.4), MULTAQ should only be prescribed after alternative treatment options have been…
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4). Treatment with dronedarone can be initiated in an outpatient setting. Treatment with Class I or III antiarrhythmics (such as flecainide, propafenone, quinidine, disopyramide, dofetilide, sotalol, amiodarone) must be stopped before starting dronedarone.
There is limited information on the optimal timing to switch from amiodarone to dronedarone. It should be considered that amiodarone may have a long duration of action after discontinuation due to its long half-life. 1). Posology The recommended dose is 400 mg twice daily in adults.
It should be taken as: • one tablet with the morning meal and • one tablet with the evening meal. 5). 3 If a dose is missed, patients should take the next dose at the regular scheduled time and should not double the dose. Special populations Elderly Efficacy and safety were comparable in elderly patients who did not suffer from other cardiovascular diseases and younger patients.
1). 2). 4). 2). 3). 2). Paediatric population The safety and efficacy of MULTAQ in children aged below 18 years of age have not yet been established. No data are available. Method of administration Oral use. It is recommended to swallow the tablet whole with a drink of water during a meal.
The tablet cannot be divided into equal doses.
Summary of the safety profile Assessment of intrinsic factors such as gender or age on the incidence of any treatment emergent adverse reactions showed an interaction for gender (female patients) for the incidence of any adverse reactions and for serious adverse reactions.
7% in the placebo-treated group. 8% in the placebo group). The most frequent adverse reactions observed with dronedarone 400 mg twice daily in the 5 studies were diarrhoea (9%), nausea (5%) and vomiting (2%), fatigue and asthenia (7%).
Tabulated list of adverse reactions The safety profile of dronedarone 400 mg twice daily in patients with atrial fibrillation (AF) or atrial flutter (AFL) is based on 5 placebo controlled studies, in which a total of 6,285 patients were randomised (3,282 patients received dronedarone 400 mg twice daily, and 2,875 received placebo).
The mean exposure across studies was 13 months. In ATHENA study, the maximum follow-up was 30 months. Some adverse reactions were also identified during post-marketing surveillance. Adverse reactions are presented by system organ class.
Frequencies are defined as: very common (≥1/10), common (≥1/100 to <1/10); uncommon (≥1/1,000 to <1/100); rare (≥1/10,000 to <1/1,000); very rare (<1/10,000); not known (cannot be estimated from 11 the available data). Within each frequency grouping, adverse reactions are presented in order of decreasing seriousness.
9%). This rate should be considered in the context of the underlying elevated incidence of CHF in AF patients. 4). 8% of patients receiving placebo. Cases of interstitial lung disease including pneumonitis and pulmonary fibrosis have been reported in post-marketing experience (frequency not known).
4). Reporting of suspected adverse reactions Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the national reporting system listed in Appendix V.
Careful monitoring during dronedarone administration is recommended by regular assessment of cardiac, hepatic and pulmonary function (see below). If AF reoccurs, discontinuation of dronedarone should be considered. 3. Monitoring of co-administered medicinal products like digoxin and anti-coagulants is necessary.
1). It is recommended to perform ECGs serially, at least every 6 months. If patients treated with dronedarone develop permanent AF, treatment with dronedarone should be discontinued. 3). Patients should be carefully evaluated for symptoms of Congestive Heart Failure.
There have been spontaneously reported events of new or worsening heart failure during treatment with dronedarone. Patients should be advised to consult a physician if they develop or experience signs or symptoms of heart failure, such as weight gain, dependent oedema, or increased dyspnoea.
If heart failure develops, treatment with dronedarone should be discontinued. Patients should be followed for the development of left ventricular systolic dysfunction during treatment. If left ventricular systolic dysfunction develops, treatment with dronedarone should be discontinued.
Patients with coronary artery disease In patients with coronary artery disease, clinical signs of heart failure and ECG should be regularly monitored to detect early signs of heart failure. In ESC and ACC/AHA/HRS guidelines dronedarone has a class IA recommendation in patients with paroxysmal/persistent AF and coronary artery disease.
1). Women of child bearing potential and pregnancy Dronedarone is not recommended during pregnancy and in women of childbearing potential not using contraception. Women of childbearing potential should use effective methods of contraception during treatment with dronedarone and for 7 days after the final dose.
6). Liver injury Hepatocellular liver injury, including life-threatening acute liver failure, has been reported in patients treated with dronedarone in the post-marketing setting. Liver function tests should be performed prior to initiation of treatment with dronedarone, after one week and after one month following initiation of treatment and then repeated monthly for six months, at months 9 and 12, and periodically thereafter.
5) • QTc Bazett interval ≥500 milliseconds • Severe hepatic impairment • Severe renal impairment (CrCl <30 ml/min) • Co-administration with dabigatran 4
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5 If alanine aminotransferase (ALT) levels are elevated ≥3 × upper limit of normal (ULN), ALT levels should be re-measured within 48 to 72 hours. If ALT levels are confirmed to be ≥3 × ULN, treatment with dronedarone should be withdrawn.
Appropriate investigation and close observation of patients should continue until normalisation of ALT. Patients should immediately report any symptoms of potential liver injury (such as sustained new-onset abdominal pain, anorexia, nausea, vomiting, fever, malaise, fatigue, jaundice, dark urine or itching) to their physician.
Management of plasma creatinine increase An increase in plasma creatinine (mean increase 10 μmol/L) has been observed with dronedarone 400 mg twice daily in healthy subjects and in patients. In most patients this increase occurs early after treatment initiation and reaches a plateau after 7 days.
It is recommended to measure plasma creatinine values prior to and 7 days after initiation of dronedarone. If an increase in creatininaemia is observed, serum creatinine should be re-measured after a further 7 days. If no further increase in creatininaemia is observed, this value should be used as the new reference baseline taking into account that this may be expected with dronedarone.
If serum creatinine continues to rise then consideration should be given to further investigation and discontinuing treatment. An increase in creatininaemia should not necessarily lead to the discontinuation of treatment with ACE inhibitors or Angiotensin II Receptors Antagonists (AIIRAs).
Larger increases in creatinine after dronedarone initiation have been reported in the post-marketing setting. Some cases also reported increases in blood urea nitrogen possibly due to hypoperfusion secondary to developing CHF (pre-renal azotaemia).
4). It is recommended to monitor renal function periodically and to consider further investigations as needed. Electrolytes imbalance Since antiarrhythmic medicinal products may be ineffective or may be arrhythmogenic in patients with hypokalaemia, any potassium or magnesium deficiency should be corrected before initiation and during dronedarone therapy.
QT prolongation The pharmacological action of dronedarone may induce a moderate QTc Bazett prolongation (about 10 msec), related to prolonged repolarisation. These changes are linked to the therapeutic effect of dronedarone and do not reflect toxicity.
Follow up, including ECG (electrocardiogram), is recommended during treatment. 3). Based on clinical experience, dronedarone has […]